Housing transfer and living integration constitute the two stages in the transformation of peasant workers into citizens. Habitation and work are the core connotations of the urbanization of people. The relevant cost needs to be paid by three different stakeholders, including government, enterprises and individuals. Taking Nanjing as an example, this paper calculates these cost items during 2005-2014. The result shows that the total cost of urbanization continues to rise, the cost paid by peasant workers in Nanjing is higher than that of government and corporations, and the trend of private cost is similar to housing cost. In the public cost, the investment in affordable housing construction and social security is less than that of infrastructure construction. Therefore, the government should play the most important role in the citizenization of peasant workers and assume more responsibilities. Especially, Nanjing should increase investment in affordable housing, and expand the scope of protection so that peasant workers could relieve housing stress. Meanwhile, we should construct a reasonable cost-sharing mechanism to match each payment stakeholder, and finally improve each agent's ability to pay relevant cost.